DE69429197T2 - Process for decolorization of alkylene amines - Google Patents
Process for decolorization of alkylene aminesInfo
- Publication number
- DE69429197T2 DE69429197T2 DE69429197T DE69429197T DE69429197T2 DE 69429197 T2 DE69429197 T2 DE 69429197T2 DE 69429197 T DE69429197 T DE 69429197T DE 69429197 T DE69429197 T DE 69429197T DE 69429197 T2 DE69429197 T2 DE 69429197T2
- Authority
- DE
- Germany
- Prior art keywords
- decolorization
- alkylene amines
- alkylene
- amines
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C209/00—Preparation of compounds containing amino groups bound to a carbon skeleton
- C07C209/82—Purification; Separation; Stabilisation; Use of additives
- C07C209/84—Purification
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US08/083,663 US5331102A (en) | 1993-06-28 | 1993-06-28 | Method for decolorization of alkanolamines and alkyleneamines |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69429197D1 DE69429197D1 (en) | 2002-01-03 |
DE69429197T2 true DE69429197T2 (en) | 2002-06-27 |
Family
ID=22179881
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69415607T Expired - Fee Related DE69415607T2 (en) | 1993-06-28 | 1994-02-22 | Process for decolorization of alkanolamines |
DE69429197T Expired - Fee Related DE69429197T2 (en) | 1993-06-28 | 1994-02-22 | Process for decolorization of alkylene amines |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69415607T Expired - Fee Related DE69415607T2 (en) | 1993-06-28 | 1994-02-22 | Process for decolorization of alkanolamines |
Country Status (8)
Country | Link |
---|---|
US (1) | US5331102A (en) |
EP (2) | EP0823415B1 (en) |
JP (1) | JPH07145114A (en) |
KR (1) | KR100213597B1 (en) |
CN (1) | CN1103639A (en) |
CA (1) | CA2116195C (en) |
DE (2) | DE69415607T2 (en) |
MX (1) | MX9401339A (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10011942A1 (en) * | 2000-03-11 | 2001-09-13 | Basf Ag | Decolorization of alkanolamines, useful in cosmetics industry e.g. in soap, washing agent or shampoo, or as dispersant or emulsifier, uses phosphorous or hypophosphorous acid or compound in heat treatment and distillation |
JP2002220364A (en) * | 2001-01-30 | 2002-08-09 | Nippon Shokubai Co Ltd | High purity alkanolamine and its producing method |
FR2856399A1 (en) * | 2003-06-23 | 2004-12-24 | Bp Lavera Snc | PROCESS FOR THE PREPARATION OF AN ETHANOLAMINE OF IMPROVED COLOR QUALITY |
US7425652B2 (en) * | 2005-07-27 | 2008-09-16 | Lyondell Chemical Technology, L.P. | Preparation of alkanolamines |
DE102008036790B4 (en) * | 2008-08-07 | 2014-05-15 | Tmt Tapping-Measuring-Technology Gmbh | Tapping channel for the discharge of iron and metal melts and liquid slag from metallurgical containers, such as blast furnaces and furnaces |
CN103140468B (en) * | 2010-09-29 | 2016-05-25 | 陶氏环球技术有限责任公司 | The decolouring of amine |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2744938A (en) * | 1952-07-24 | 1956-05-08 | Universal Oil Prod Co | Removal of color impurities from organic compounds |
US3207790A (en) * | 1961-07-06 | 1965-09-21 | Dow Chemical Co | Process for reducing the color of discolored alkanolamines |
US3217026A (en) * | 1962-02-02 | 1965-11-09 | Gen Mills Inc | Removal of metals and color from polymeric secondary amines |
US3453183A (en) * | 1964-12-29 | 1969-07-01 | Nippon Catalytic Chem Ind | Method of purifying ethanolamines |
US3428684A (en) * | 1966-11-02 | 1969-02-18 | Commercial Solvents Corp | Purification of alkanol amines |
US3723529A (en) * | 1970-10-19 | 1973-03-27 | Jefferson Chem Co Inc | Decolorization of polyethylene polyamines |
JPS5020047B1 (en) * | 1970-12-28 | 1975-07-11 | ||
US3819710A (en) * | 1973-01-04 | 1974-06-25 | Olin Corp | Process for improving color and color stability of ethanolamines |
US4570019A (en) * | 1981-02-25 | 1986-02-11 | Union Carbide Corporation | Method of preparing polyethylene polyamines having improved color |
DE3270350D1 (en) * | 1981-02-25 | 1986-05-15 | Union Carbide Corp | Method of preparing polyethylene polyamines having improved color |
US4827037A (en) * | 1985-04-04 | 1989-05-02 | Union Carbide Corporation | Quality of catalytically prepared polyalkylene polyamines |
US4737243A (en) * | 1985-12-16 | 1988-04-12 | The Dow Chemical Company | Method for decoloration of triethylenetetramine (TETA) |
US4731165A (en) * | 1985-12-16 | 1988-03-15 | The Dow Chemical Company | Method of decoloration of triethylenetetramine using sulfonic acid ion exchange resins |
US4673762A (en) * | 1986-05-27 | 1987-06-16 | Texaco Inc. | Decolorizing ethanolamines with alkylene oxides |
US4970344A (en) * | 1987-07-02 | 1990-11-13 | Conoco Inc. | Reactivation of spent alkanolamine |
US5019653A (en) * | 1990-05-14 | 1991-05-28 | Texaco Chemical Company | Purification of polyamines derived from polyhydroxyl compounds |
ES2067106T3 (en) * | 1990-09-24 | 1995-03-16 | Atochem North America | PURIFICATION AND DECOLORATION OF INTENSE COLOR ALKYL-ALCANOLAMINES. |
-
1993
- 1993-06-28 US US08/083,663 patent/US5331102A/en not_active Expired - Fee Related
-
1994
- 1994-02-22 CA CA002116195A patent/CA2116195C/en not_active Expired - Fee Related
- 1994-02-22 EP EP97119696A patent/EP0823415B1/en not_active Expired - Lifetime
- 1994-02-22 EP EP94301223A patent/EP0638544B1/en not_active Expired - Lifetime
- 1994-02-22 MX MX9401339A patent/MX9401339A/en not_active IP Right Cessation
- 1994-02-22 DE DE69415607T patent/DE69415607T2/en not_active Expired - Fee Related
- 1994-02-22 KR KR1019940003092A patent/KR100213597B1/en not_active IP Right Cessation
- 1994-02-22 JP JP6046516A patent/JPH07145114A/en active Pending
- 1994-02-22 CN CN94103240A patent/CN1103639A/en active Pending
- 1994-02-22 DE DE69429197T patent/DE69429197T2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
DE69415607T2 (en) | 1999-06-17 |
EP0823415A2 (en) | 1998-02-11 |
EP0638544B1 (en) | 1998-12-30 |
EP0823415B1 (en) | 2001-11-21 |
EP0638544A2 (en) | 1995-02-15 |
CA2116195C (en) | 1999-12-21 |
CN1103639A (en) | 1995-06-14 |
DE69415607D1 (en) | 1999-02-11 |
JPH07145114A (en) | 1995-06-06 |
MX9401339A (en) | 1997-03-29 |
EP0823415A3 (en) | 1999-09-15 |
KR100213597B1 (en) | 1999-08-02 |
CA2116195A1 (en) | 1994-12-29 |
DE69429197D1 (en) | 2002-01-03 |
KR950000646A (en) | 1995-01-03 |
EP0638544A3 (en) | 1996-09-25 |
US5331102A (en) | 1994-07-19 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |